The AppCenter link that you gave me works. It's a bit strange though, I read the instructions in the zip file telling me to copy the .cab file to the mc45 and run it from there. It then prompted me to install either at \device or \application. I chose the latter, installation finished and there was 2 shortcuts created. However I can't launch the AppCenter by using those shortcuts, saying something like the either it is not signed with a trusted certificate or one of its components cannot be found.

However if I just copy the .exe from the zip file over to the mc45, the program will open. Weird.